Displaying 20 results from an estimated 2000 matches similar to: "R software"
2009 Oct 01
2
Missing functions
Hi all,
I'm new to R and have been working hard to get familiarized with it. A
problem I'm facing now is that having installed some packages (psych, doBy),
I can't seem to access the functions even through there was no error
messages when I load them using library(). I get an error telling me the
function doesn't exist. But when I ran e.g. library(help = psych), the
function I
2009 May 26
4
moving from Windows to Linux - need help
hi
I've used R for many years on windows machines, but
have now acquired an Asus eee 1000 linux machine.
In order to get the best out of the machine, I used the
'pimpmyeee.sh' script, to get the full KDE desktop.
The version of Linux is Xandros, which I believe is
a close relative of Debian, but sadly I have only a
nodding acquaintance with Linux at present.
Naturally I want to
2005 Aug 09
1
cannot boot any domU - case #2
Hi,
I noticed the earlier thread on this started by Scott Koranda (sorry
- was reading off gmane so I can''t reply to thread)
I have exactly the same symptoms: machine hangs as soon as I attempt
to start a single domU, just after emitting "using config file..."
At that point the machine appears completely wedged. The sequence of
3 ^A on the console no longer does
2010 Aug 05
1
using grib files in R
I am not new to R, but I am new to .grib files. I am downloading some
climate data and I would like to analyze it in R. R has a nice netcdf
package, but I don?t see any package available to deal specifically
with grib files. I see a few posts from other people using grib files
in R. However, I was unclear if they used grib files in a different
software program and then imported the data
2010 Jun 16
4
an alternative to R for nonlinear stat models
Hi
I implemented the age-structure model in Gove et al (2002) in R, which is a
nonlinear statistical model. However running the model in R was very slow.
So Dave Fournier suggested to use the AD Model Builder Software package and
helped me implement the model there.
ADMB was incredibly fast in running the model:
While running the model in R took 5-10 minutes, depending on the
2010 Jul 16
2
Recommended way of requiring packages of a certain version?
What is the recommended way of requiring a certain version when loading
a package (or, indeed, from R itself)?
Perl has the
require module version
use module version
require version
use version
constructs which is kind of what I am looking for (especially 'use'
which is evaluated at compile time), but R seems to have lost the
version= argument to require().
The best I have been able
2010 Apr 11
1
Adding country boundaries on field map plots
Hi R users,
What is the command for adding (or how do we add) country boundaries on
r-spatial plots.
Thanks
ZABLONE OWITI
GRADUATE STUDENT
Nanjing University of Information, Science and Technology
College of International Education
Add: 219 Ning Liu Rd, Nanjing, Jiangsu, 21004, P.R. China
Website: www.nuist.edu.cn
====================================================
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2010 Apr 15
1
histogram
Dear R gurus...
How do I control "smoothing" of a density plot in panel.densityplot when
using histogram?
Thanks much,
Santosh
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2010 Apr 28
2
How to read contents of a text file into a single string?
... Both readLines() and scan() produce a number_of_lines x 1 vector; trying
paste(s, collapse = NULL) leaves it unaffected. How can I concatenate vector
elements (lines) into a single string?
Thank you.
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2010 Apr 29
1
using get and paste in a loop to return objects for object names listed a strings
I am trying to create a heap of boxplots, by looping though a series of
factors and variables in a large data.frame suing paste to constrcut the
facto and response names from the colnames
I thought I could do this using get()
however it is not working what am I doing wrong?
thanks
Nevil Amos
> sp.codes=levels(data.all$CODE_LETTERS)
>
> for(spp in sp.codes) {
>
>
>
2010 May 06
1
extracting coordinates from SpatialPolygonsDataFrame using slot functions
In converting some older code:
## builds an OWIN to generate a set of points on a grid within the OWIN object:
bdry <- read.shape( "../../data/boundary.shp" )
outline.verts <- bdry$Shapes[[2]]$verts[1:bdry$Shapes[[2]]$Pstart[2],]
outline.order <- nrow( outline.verts ) : 2
bdry.poly <- vector( 2, mode="list" )
bdry.poly[[1]] <- list(
2010 Mar 02
4
two questions for R beginner
>>> What were your biggest misconceptions or
>>> stumbling blocks to getting up and running
>>> with R?
Easy. I terms of materials I have been unable to find good books that
introduce users to R from the perspective of someone familiar only
with packages like SPSS or STATA, or not familiar with statistics
packages at all. Even introduction texts use jargon
2009 May 27
5
How to exclude a column by name?
Given an arbitrary data frame, it is easy to exclude a column given its index:
df[,-2]. How to do the same thing given the column name? A naive attempt
df[,-"name"] did not work :)
2010 Apr 15
2
Question about R mode
Hello all,
I am using R to perform certain calculations on huge amounts of data. In short I need a function that does the mode function, ie returns the most common element. I looked at the mode function in R but it seems to return the type of the data element you give it. Does such a method exist? I have tried googling this to no avail as all the results lead me back to the mode function I do
2010 Jun 25
1
Confused: Looping in dataframes
Hey,
I have a data frame x which consists of say 10 vectors. I essentially want
to find out the best fit exponential smoothing for each of the vectors.
The problem while I'm getting results when i say
> lapply(x,ets)
I am getting an error when I say
>> myprint
function(x)
{
for(i in 1:length(x))
{
ets(x[i],model="AZZ",opt.crit=c("amse"))
}
}
The error message is
2010 Jul 14
1
POSIXlt error for 1982-01-01
Hi, I am encountering a strange error in POSIXlt... anyone got a clue?
> as.POSIXlt("1982-01-01")
Error in as.POSIXlt.character("1982-01-01") :
character string is not in a standard unambiguous format
> as.POSIXlt("1992-01-01")
[1] "1992-01-01"
> as.POSIXlt("1972-01-01")
[1] "1972-01-01"
> as.POSIXlt("1962-01-01")
2010 Aug 06
1
R code for EGARCH
Hi,
Can we run EGARCH in R. If yes, I would be grateful if someone could tell me
the R codes for running EGARCH model.
Thanks.
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2010 Sep 06
2
replacing functions
Dear All,
Is it possible to replace function with my own? I want to apply pca
clustering, but
to use some strange correlation function. I'm asking about replacing,
say, mean() with new content of mean() and use standard other functions,
which might use mean() as part.
karsar
2010 Mar 09
3
Removing Zeros from matrix
Hi Everybody,
I have a matrix of about 45 columns. Some of the rows contain zeros. Using
>data1<-data[complete.cases(data),], I can remove the "NA" rows. But I am
unable to tackle that of zeros.
Can anybody give me an idea of how to remove rows containing zeros in a
matrix.
Thanks so much
Best
Ogbos
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2010 Aug 17
3
Automated plot and linear regression line/data
Hi,
I have an excel sheet (already imported to R) with multiple columns and I am
looking for a way in R that will allow me to generate a plot for every
possible pair and its linear regression line/data.
Any tip/idea/script how do to so.
Thanks,
As hz
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